US7152743B2 - Screening panel securing system - Google Patents
Screening panel securing system Download PDFInfo
- Publication number
- US7152743B2 US7152743B2 US10/493,517 US49351704A US7152743B2 US 7152743 B2 US7152743 B2 US 7152743B2 US 49351704 A US49351704 A US 49351704A US 7152743 B2 US7152743 B2 US 7152743B2
- Authority
- US
- United States
- Prior art keywords
- screening
- modules
- rail
- formation
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4645—Screening surfaces built up of modular elements
Definitions
- This invention relates to screening systems. More particularly, the invention relates to the securing of screening panels to a screening machine.
- the invention relates to a screening assembly and to components for a screening assembly.
- a screening assembly which includes:
- At least one rail to be secured, in use, to a support member of a screening machine to lie intermediate and parallel to side members of the screening machine;
- At least one locating formation extending from an operatively upper surface of said at least one rail, the at least one locating formation including a catch member;
- each screening module having an end supported on the at least one rail, a pair of modules lying in end-to-end abutting relationship with the abutting ends overlying the at least one rail so that at least the catch member of said locating formation protrudes beyond an upper surface of the screening modules;
- a locking member associated with the at least one locating formation for engaging the catch member of said locating formation for locking the pair of modules with respect to each other and with respect to the rail.
- Each rail may be in the form of a length of hollow box-section beam with a longitudinally extending slot defined in an operatively lower face of the beam.
- the beam may define a channel in which a head of a fastening means is slidably received for securing the rail to an underlying sub-frame of the screening machine.
- the beam may have a coating of a plastics material.
- the plastics coating may have a pair of spaced, parallel, longitudinally extending grooves defined in an operatively upper surface.
- Each end of each module may have a bead extending along an operatively lower surface, the bead, in use, being received in one of the grooves for effecting lateral location of the module relative to the rail.
- Each locating formation may be in the form of a plate or plate-like structure which extends upwardly from an operatively upper surface of the rail.
- Each plate-like structure may also be coated with a synthetic plastics material.
- the plastics material coating the beam and the plate-like structure may be a polyurethane material.
- the catch member of each locating formation may be formed in a free end of the plate-like structure.
- each locating formation may be arranged on its associated rail with longer sides of the plate-like structure extending parallel to a direction of flow of material over the screening modules.
- the plate-like structure of each locating formation may be arranged at substantially right angles to a direction of flow of material over the screening modules.
- each screening module may have at least two locating formations associated with each end and a single locking member, which has a length substantially the same as that of each end of the screening module, may engage both locating formations.
- the catch member of each locating formation may be substantially hook-shaped.
- the catch member may be in the form of a hook having a downwardly extending tip for engaging a complementary locking formation of the locking member to effect positive locking of the screening modules to the rail.
- the catch member may have a substantially curved, cam-like shape which engages a similarly curved, but oppositely directed, cam-like locking formation of the locking member to effect positive locking of the screening modules to the rail.
- the locking member may include a body member which, conveniently, is of a metal-reinforced plastics material.
- each locating formation has a locking member associated with it
- an upstream end (when viewed in a direction of flow of material) of the locking member may be rounded to act as a deflector for deflecting the material to be screened.
- a slot may open out into a downstream end of the locking member into which the catch member of the locating formation is received to enable the catch member to engage the complementary locking formation of the locking member. In so doing, positive locking of the screening modules to the rails is facilitated.
- the slots may open out into a side of the locking member so that the locking member is slid into position relative to the locating formations in a direction at right angles to the direction of flow of material over the screening modules.
- each locking member may have a slightly outwardly flared portion which acts as a skirt and bears against upper surfaces of the associated screening modules for inhibiting the ingress of detritus between the bottom of the locking member and the upper surfaces of the modules.
- Each screening module may be substantially rectangular when viewed in plan and shorter sides of the screening modules may, in use, be arranged in the direction of flow of material over the screening modules.
- the ends of the screening modules may thus be the shorter sides of the screening modules which are received over their associated rails, each end of each screening module defining a part of at least one recess so that when the two modules abut end-to-end, at least one completed passage is formed through which an associated formation passes.
- the passage may be shaped to accommodate its associated locating formation as a snug fit therein.
- the modules may be of a synthetic plastics material, suitably reinforced.
- the plastics material from which the modules are made may be polyurethane.
- the hardness of the polyurethane used for the locking member may differ from that of the modules for inhibiting binding of the locking member relative to its associated modules.
- the locking member may be of a harder polyurethane than the modules.
- a screening module for a screening assembly including:
- a body member having a pair of opposed ends
- a locating means arranged along an operatively lower surface of at least one of the ends of the body member, the locating means being received in a complementary formation of an underlying rail of the screening assembly, in use, for locating the module with respect to the rail.
- Each end of the body member may be stepped at its lower edge to overlie the rail of the screening assembly.
- the locating means may be arranged intermediate an end of the body member and an operatively vertical part of the step.
- an intermediate rail for a screening assembly including:
- a hollow, elongate element to be secured to an underlying support member of a screening machine by a plurality of spaced fasteners, the elongate element having a longitudinally extending slot defined in a surface thereof so that heads of the fasteners can be received within the elongate element with shanks of the fasteners protruding through the slots;
- At least one locating formation standing proud of an operatively upper surface of the elongate element, the, or each, locating formation including a catch member.
- the elongate element and the at least one locating formation may be covered with a synthetic plastics material.
- a locking member for a screening assembly including:
- a body member having at least one open ended slot defined therein;
- a locking formation arranged in the at least one slot to be engaged, by a catch member of a locating formation of the screening assembly when the catch member is received in the slot, in use.
- FIG. 1 shows a schematic plan view of a screening assembly in accordance with a first example of a first embodiment of the invention
- FIG. 2 shows a schematic end view of the assembly of FIG. 1 ;
- FIG. 3 shows a schematic side view of the assembly of FIG. 1 ;
- FIG. 4 shows, on an enlarged scale, part of a side view of the assembly of FIG. 1 ;
- FIG. 5 shows a schematic plan view of a screening assembly in accordance with a second example of the first embodiment of the invention
- FIG. 6 shows a schematic end view of the assembly of FIG. 5 ;
- FIG. 7 shows a schematic side view of the assembly of FIG. 5 ;
- FIG. 8 shows, on an enlarged scale, part of a side view of the assembly of FIG. 5 ;
- FIG. 9 shows a schematic plan view of a screening assembly in accordance with a third example of the first embodiment of the invention.
- FIG. 10 shows a schematic side view of the assembly of FIG. 9 ;
- FIG. 11 shows a schematic plan view of a screening assembly in accordance with a fourth example of the first embodiment of the invention.
- FIG. 12 shows a schematic side view of the assembly of FIG. 11 ;
- FIG. 13 shows a schematic plan view of a screening assembly in accordance with a second embodiment of the invention.
- FIG. 14 shows a schematic end view of the assembly of FIG. 13 ;
- FIG. 15 shows a schematic side view of the assembly of FIG. 13 ;
- FIG. 16 shows, on an enlarged scale, a part of a schematic end view of the assembly of FIG. 13 .
- reference numeral 10 generally designates a screening assembly, in accordance with the invention.
- the assembly 10 comprises a plurality of screening modules 12 , a pair of which is shown in FIGS. 1 , 5 , 9 , 11 and 13 of the drawings.
- the pair of modules 12 is shown in abutting end-to-end relationship. It is to be noted in FIGS. 1 , 5 , 9 , 11 and 13 that screening apertures of the screening modules 12 are omitted for the sake of clarity.
- the screening modules 12 are mounted on a sub-frame (not shown) of a screening machine (also not shown).
- the sub-frame and the screening machine are well known in the art and are not described in any detail below.
- the modules 12 are secured to the sub-frame of the machine in end-to-end abutting relationship by means of intermediate rails, one of which is shown, for example, at 14 in FIG. 3 of the drawings.
- the sub-frame of the screening machine comprises a plurality of members extending in spaced, parallel relationship between two sides of the screening machine. Each member of the sub-frame supports an intermediate rail 14 thereon as does each side of the screening machine.
- FIGS. 1–4 of the drawings show a first example of a first embodiment of the invention.
- abutting ends of the modules 12 are secured to their associated rail 14 by a single locating formation 16 and its associated locking member 18 .
- each intermediate rail 14 is formed from a length of hollow box section beam 20 with a longitudinally extending slot 22 formed in an operatively bottom face of the beam 20 .
- the beam 20 is covered by a coating 24 of a synthetic plastics material.
- the beam 20 facilitates securing of the rail 14 to any screening machine as the rail 14 does not have fasteners arranged at a fixed pitch. Instead, a head of a fastener 25 can be inserted into the beam 20 and is slidable relative to the beam 20 so that the rail 14 can be mounted on different makes of screening machines thereby improving the versatility of the assembly 10 .
- the plastics coating 24 is, conveniently, a polyurethane material.
- a groove 26 is formed in the coating 24 .
- a bead or rib 28 at an end of each module 12 is received in one of the grooves 26 for locating the module 12 laterally with respect to the rail 14 .
- Each locating formation 16 includes a plate-like structure 30 which stands proud of an upper surface of the rail 14 .
- a catch member 32 is arranged at a free end of the plate-like structure 30 .
- the plate-like structure 30 is also coated with the coating 24 of polyurethane material as is the catch member 32 .
- the locking member 18 includes a metal reinforced plastics body member 34 .
- a slot 36 opens out into an operatively downstream end (when viewed in a direction of flow of material to be screened over the modules 12 , as illustrated by arrow 38 in FIG. 1 of the drawings) of the body member 34 .
- An upstream end 35 of the body member 34 of the locking member 18 has a curved shape to act as a deflector for deflecting the material to be screened away from the locking members 18 .
- the locking member 18 includes a locking formation 40 which projects into the slot 36 and engages the catch member 32 of the locating formation 16 .
- the catch member 32 is in the form of a hook having a downwardly extending tip 42 .
- the locking formation 40 of the locking member 18 is correspondingly shaped to clip under the tip 42 of the catch member 32 to effect positive locking of the modules 12 relative to the rail 14 in a vertical direction perpendicular to the flow of material.
- the catch member 32 is of curved profile when viewed side on (as shown in FIGS. 7 and 8 of the drawings) to provide a cam-like locking surface 44 .
- This cam-like locking surface 44 of the catch member 32 engages a complementary cam-like locking formation 46 of the locking member 18 to facilitate positive locking of the modules 12 relative to their associated rail 14 .
- each pair of abutting modules 12 is secured to its associated rail 14 by a pair of locating formations 16 , each with its associated locking member 18 .
- the catch member 32 of each locating formation 16 has the hook with the downwardly extending tip 42 .
- each pair of modules 12 is secured to its associated rail 14 by a pair of locating formations, each with its associated locking member 18 .
- the catch member 32 of each locating formation 16 has the curved, cam-like profile with the locking formation 46 of each locking member 18 having the complementarily curved shape.
- the plate-like structure of the, or each, locating formation is arranged so that longer sides of the plate-like structure extend parallel to the direction of flow of material as illustrated by the arrow 38 .
- FIGS. 13 to 16 of the drawings a second embodiment of the invention is illustrated.
- like reference numerals refer to like parts, unless otherwise specified.
- the plate-like structure 30 of each locating formation 16 is arranged on the intermediate rail 14 with longer sides of the plate-like structure 30 of each locating formation 16 extending at right angles to a direction of flow of material over the screening modules 12 .
- the pairs of modules 12 are secured to their associated intermediate rail 14 by at least two locating formations.
- a single locking member 18 which has a length approximately the same as that of the ends of modules 12 and which engages the two locating formations 16 for securing the modules 12 to their associated intermediate rail 14 .
- a pair of slots 48 open into a side of the body member 34 of the locking member 18 .
- the locking member 18 is slid into position relative to the locating formation 16 in a direction at right angles to the direction of flow of material over the screening modules 12 .
- the illustrated embodiment uses locating formations 16 where the catch member 32 has the curved, cam-like profile. It will, however, be readily appreciated that the catch member 32 could have the hook-shape as illustrated, for example in FIG. 3 of the drawings.
- All of the components of the screening assembly 10 are made of a metal-reinforced polyurethane material.
- the hardness of the polyurethane from which the rails 14 , the locating formations 16 and the locking members 18 are made is harder than the polyurethane from which the modules 12 are made so that binding of the modules 12 with respect to the rails 14 , locating formations 16 and locking members 18 is inhibited.
- the modules 12 may be made from a polyurethane having a Shore Hardness of 85–93A whereas the polyurethane from which the locking members 18 , the locating formations 16 and the rails 14 are made may have a Shore Hardness of 95A or a Shore D-scale Hardness of 60–65.
- a screening assembly 10 is provided which achieves positive locking of the screening modules 12 to their associated intermediate rails 14 without the need for any specialised tools.
- the slot 36 of the locking member 18 is arranged at a downstream end of the locking member 18 .
- the applicant believes that blinding of the slot 36 is unlikely. Even were blinding of the slot 36 to occur, merely knocking the locking member 18 , from the downstream end, by means of a hammer, or other similar implement will clear the slot 36 and allow removal of the locking member 18 so that the modules 12 can be removed and replaced.
- FIGS. 13 to 16 of the drawings if the slots 48 were blinded by material, merely knocking the locking member from the side into which the slots 48 open out should facilitate removal of the locking member 18 to release the screening modules 12 to allow them to be replaced.
Abstract
Description
Claims (28)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPR9592A AUPR959201A0 (en) | 2001-12-18 | 2001-12-18 | Screening panel securing system |
AUPR9592 | 2001-12-18 | ||
PCT/AU2002/001668 WO2003051536A1 (en) | 2001-12-18 | 2002-12-10 | Screening panel securing system |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050016902A1 US20050016902A1 (en) | 2005-01-27 |
US7152743B2 true US7152743B2 (en) | 2006-12-26 |
Family
ID=3833207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/493,517 Expired - Lifetime US7152743B2 (en) | 2001-12-18 | 2002-12-10 | Screening panel securing system |
Country Status (5)
Country | Link |
---|---|
US (1) | US7152743B2 (en) |
AU (1) | AUPR959201A0 (en) |
CA (1) | CA2467029C (en) |
WO (1) | WO2003051536A1 (en) |
ZA (1) | ZA200403822B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007020155A1 (en) * | 2007-04-26 | 2008-10-30 | Hein Lehmann Trenn- und Fördertechnik GmbH | Fixing system for flexible screening mats |
US20100044281A1 (en) * | 2006-12-22 | 2010-02-25 | Johnson Sceens (Australia) 4034 | Screening panel securing system |
US20110000828A1 (en) * | 2008-10-30 | 2011-01-06 | Rotex Global, Llc | Screening machine with segmented screen panels |
US8800779B2 (en) | 2011-07-05 | 2014-08-12 | Lumsden Corporation | Screen surface forming system |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6669027B1 (en) * | 1999-03-19 | 2003-12-30 | Derrick Manufacturing Corporation | Vibratory screening machine and vibratory screen and screen tensioning structure |
US7063214B2 (en) * | 2003-02-04 | 2006-06-20 | Varco I/P, Inc. | Interlocking screens for vibratory separators |
JP4527119B2 (en) * | 2004-08-05 | 2010-08-18 | 三菱電機株式会社 | Base station, mobile communication terminal apparatus and primary cell selection method |
US8127932B2 (en) | 2006-08-01 | 2012-03-06 | Ludowici Australia Pty Ltd | Screen module for vibratory screening apparatus |
WO2008077181A1 (en) * | 2006-12-22 | 2008-07-03 | Johnson Screens (Australia) Pty Ltd | Improved screening panel securing system |
US20100108579A1 (en) * | 2008-10-30 | 2010-05-06 | Rotex Global. Llc | Screening Machine with Segmented Components |
CN114602807B (en) * | 2022-03-23 | 2023-12-19 | 中国矿业大学 | Dry classification and dust removal integrated screening equipment and method for micro-fine particle materials |
CN115220347B (en) * | 2022-07-15 | 2023-08-08 | 江苏邦鼎科技有限公司 | Material particle screening control method and system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4670136A (en) | 1983-03-05 | 1987-06-02 | Isenmann, Drahterzeugnisse Gmbh | Screen surfacing with exchangeable screen elements |
US5361911A (en) * | 1994-04-14 | 1994-11-08 | Miller Wire Works, Inc. | Screening panel attachment system |
US5377846A (en) * | 1989-08-25 | 1995-01-03 | Western Wire Works, Inc. | Particle screening system |
AU6214796A (en) | 1995-08-31 | 1997-03-06 | Lettela Proprietary Limited | Screening apparatus |
US6253926B1 (en) * | 1996-09-05 | 2001-07-03 | Lettela Pty Limited | Modular screen panel |
-
2001
- 2001-12-18 AU AUPR9592A patent/AUPR959201A0/en not_active Abandoned
-
2002
- 2002-12-10 WO PCT/AU2002/001668 patent/WO2003051536A1/en not_active Application Discontinuation
- 2002-12-10 CA CA2467029A patent/CA2467029C/en not_active Expired - Lifetime
- 2002-12-10 US US10/493,517 patent/US7152743B2/en not_active Expired - Lifetime
-
2004
- 2004-05-18 ZA ZA2004/03822A patent/ZA200403822B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4670136A (en) | 1983-03-05 | 1987-06-02 | Isenmann, Drahterzeugnisse Gmbh | Screen surfacing with exchangeable screen elements |
US5377846A (en) * | 1989-08-25 | 1995-01-03 | Western Wire Works, Inc. | Particle screening system |
US5361911A (en) * | 1994-04-14 | 1994-11-08 | Miller Wire Works, Inc. | Screening panel attachment system |
AU6214796A (en) | 1995-08-31 | 1997-03-06 | Lettela Proprietary Limited | Screening apparatus |
US6253926B1 (en) * | 1996-09-05 | 2001-07-03 | Lettela Pty Limited | Modular screen panel |
Non-Patent Citations (1)
Title |
---|
International Search Report of Jan. 28, 2003 from Australian Patent Office. |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100044281A1 (en) * | 2006-12-22 | 2010-02-25 | Johnson Sceens (Australia) 4034 | Screening panel securing system |
DE102007020155A1 (en) * | 2007-04-26 | 2008-10-30 | Hein Lehmann Trenn- und Fördertechnik GmbH | Fixing system for flexible screening mats |
US20110000828A1 (en) * | 2008-10-30 | 2011-01-06 | Rotex Global, Llc | Screening machine with segmented screen panels |
WO2012037098A1 (en) * | 2010-09-16 | 2012-03-22 | Rotex Global, Llc | Screening machine with segmented screen panels |
US8800779B2 (en) | 2011-07-05 | 2014-08-12 | Lumsden Corporation | Screen surface forming system |
US9375757B2 (en) | 2011-07-05 | 2016-06-28 | Lumsden Corporation | Screen surface forming system |
Also Published As
Publication number | Publication date |
---|---|
ZA200403822B (en) | 2005-07-27 |
CA2467029A1 (en) | 2003-06-26 |
US20050016902A1 (en) | 2005-01-27 |
CA2467029C (en) | 2010-11-30 |
AUPR959201A0 (en) | 2002-01-24 |
WO2003051536A1 (en) | 2003-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7152743B2 (en) | Screening panel securing system | |
US7731035B2 (en) | Ore screening panel frame system | |
AU2006318056B2 (en) | Screen panel fastener and fastening arrangement | |
US7841476B2 (en) | Screening module retaining member | |
US5769241A (en) | Screen panel fixing system | |
US6715613B2 (en) | Screening module and a screening assembly including such module | |
US8123043B2 (en) | Screening module retaining assembly | |
US20060237348A1 (en) | Support frame | |
US6260711B1 (en) | Shielding device for screening apparatus | |
AU2016234892B2 (en) | Screen panel locking system | |
AU2002347194B2 (en) | Screening panel securing system | |
AU2009200159B2 (en) | Ore Screening Panel Frame Cover | |
RU2705850C2 (en) | Screen and method of screen modification | |
US7066334B2 (en) | Screening panel securing system | |
CA2920438C (en) | Screen panel locking system | |
AU2002335929A1 (en) | Screening panel securing system | |
AU700843B2 (en) | Screen panel fixing system | |
US20230234100A1 (en) | Screening panel | |
AU2006200441B2 (en) | Ore Screening Panel Frame System | |
AU2021202464A1 (en) | Spring anchor assembly for track rail and spring anchor insulator for same | |
AU2010100899A4 (en) | Ore screening panel frame system | |
ZA200601195B (en) | Ore screening panel frame system | |
AU2005289353A1 (en) | A screening module retaining member |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WEATHERFORD INTERNATIONAL, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EELES, JOHN WILLIAM;JOHNSON, RONALD LESLIE;OLSEN, PETER MARTIN;REEL/FRAME:014722/0749 Effective date: 20040310 |
|
AS | Assignment |
Owner name: WEATHERFORD AUSTRALIA PTY LIMITED., AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEATHERFORD INTERNATIONAL, INC.;REEL/FRAME:016349/0109 Effective date: 20050728 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: LUDOWICI AUSTRALIA PTY LTD, AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEATHERFORD/LAMB, INC.;WEATHERFORD AUSTRALIA PTY. LIMITED;JOHNSON SCREENS (AUSTRALIA) PTY. LIMITED;AND OTHERS;REEL/FRAME:025126/0380 Effective date: 20091231 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: FLSMIDTH A/S, DENMARK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LUDOWICI AUSTRALIA PTY LTD;REEL/FRAME:039275/0367 Effective date: 20131016 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553) Year of fee payment: 12 |